Dear friend, welcome to HCM.
I can understand your aprehension.
With history of oesophageal spasms and family history of heart attacks, it is prudent to get cardiac work up .
pl. get physical exam, ECG, 2D echo, Xray chest and sos cardiology consult,
both oesophageal and cardiac angina
may be relieved by inhaled/ sublingual nitrates like sorbitrate
. but with your low BP
, that is dangerous to use.
so I would strongly suggest to seek medical help
and get evaluated for both.
hope that guides you,
pl. take care and keep me posted.